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May 10, 2021 Service bulletin

This PI communicates diagnostic tips to help dealership diagnosis a service trailer brake message with DTC...

Chevrolet technical service bulletin PIT4595J for 2007-2013 Chevrolet Silverado 1500, 2009-2014 Chevrolet Tahoe and 2007-2010, 2012-2013 GMC Sierra 1500 and others.

Bulletin number
PIT4595J
Component
Electrical system
Summary
This PI communicates diagnostic tips to help dealership diagnosis a service trailer brake message with DTC C1114 and C1112.

Owners of these vehicles have filed 610 complaints in the electrical category.

Vehicles covered

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